Dual Fuel Systems promise flexibility, and efficiency - but only if they're designed with the right balance of climate, controls, and contractor know-how. This session will break down when dual fuel makes sense (and when it doesn’t), how to size and design for real-world conditions, and the keys to choosing balance points—whether your goal is comfort, economics, or both. We’ll also cover control strategies, hybrid system options, and the climate zone pitfalls that separate success from costly callbacks.